What convenience does methanol vehicles bring to our lives?

Methanol is commonly known as "wood alcohol" or "wood spirit", methanol instead of petroleum fuel has been used in foreign countries for many years, methanol vehicle control system technology has been very mature, the same as ethanol, methanol calorific value is low, but octane number is high, also oxygen, combustion methanol also needs to use a special engine. However, unlike ethanol, methanol itself is toxic, corrosive to non-ferrous metals, and swelling to rubber parts, so it is necessary to design the engine and the fuel distribution system on the vehicle. This type of car that is specifically designed to burn methanol fuel is called a methanol car.

Methanol cars also have the problem of cold starting, so methanol is mostly used in cars in the form of mixing with gasoline. The most common is M85, which is a mixture of 85% methanol and 15% gasoline. In some parts of China, methanol gasoline containing 15% methanol is now being demonstrated, which contains a co-solvent that is miscible with gasoline, as well as a corrosion inhibitor that inhibits metal corrosion, and can be used in gasoline engines without any modifications.

Because methanol is toxic, special attention should be paid to all aspects of methanol use, and corresponding management systems and methods should be formulated to ensure the safety of use. More than 70 countries in the world have applied methanol vehicles to varying degrees, and some have reached a large-scale promotion, and the status of methanol vehicles is increasing day by day. Methanol is abundant in resources, can be renewable, and belongs to biomass energy.

China is a country with more coal than oil, and the moderate development of methanol vehicles is a way out of the energy problem. However, methanol is also a primary energy source, and its use will also bring environmental pollution.

China's development and application of methanol vehicles began in the 80s of the 20th century, and many provinces, cities and enterprises actively participated, achieved a large number of technical achievements and valuable experience, and formed a certain scale. Since the "Eleventh Five-Year Plan", methanol has gradually developed as an alternative fuel for vehicles, and the two national standards of "methanol gasoline for vehicles (M85)" and "methanol for vehicle fuel" have been promulgated and implemented, and positive results have been achieved in the development and testing of methanol vehicles, especially in diesel engines, which has provided the possibility for methanol fuel to replace diesel. However, due to the controversy over the formaldehyde emissions and safety of methanol vehicles in the society for many years, there has been little progress overall.

So that people are not deterred by the high cost of gasoline.

It can make people's lives more convenient.

A lot of convenience, people's car habits have changed.

A lot, just like he is more environmentally friendly.

He provided easy motivation for our trip as well as other questions.

This saves on gasoline consumption as well as some hazards.

It can make the car even less pollutant.

It can reduce the pollutants in the air a lot.

I think it's because security has improved.

The new water-based fuel has the advantages of methanol-free, non-combustible at open flame and non-hazardous chemicals, non-toxic and harmless. It can already replace the liquefied gas used in traditional catering kitchens, and the coal diesel used in industrial boilers and the fuel oil used in heating boilers have become rare and good fuels.

It can be used in major hotels, restaurants, restaurants, canteens, etc., with a calorific value of up to 7000 kcal kilograms and a temperature of up to 1350 degrees.

The application of methanol as a fuel in automobiles mainly includes blending and pure methanol substitution. Blending refers to the mixing of methanol into gasoline in different proportions (such as M10, M15, M30, etc.) as fuel for the engine, which is generally called methanol gasoline; Pure methanol substitution refers to the direct use of a high proportion of methanol (such as M85, M100) as automobile fuel, which requires modification of the engine structure and is more technically difficult. Methanol as a vehicle fuel has the following advantages:

1) High octane number, can significantly increase the mixed octane number of the fuel, enhance the anti-knock performance, can improve the compression ratio of the engine, thereby improving the power of the engine. (2) Methanol is a high oxygen substance, and the excess air coefficient required for complete combustion in the cylinder can be much smaller than the value required when burning gasoline, and the combustion is more sufficient. (3) Good volatility, which is conducive to mixing with air.

Methanol gasoline has a wide flammability limit and fast combustion speed, which can achieve lean combustion, which is conducive to improving engine thermal efficiency, exhaust purification and reducing fuel consumption. (4) It can significantly reduce exhaust emissions. Methanol has a high oxygen content, the engine is more completely burned with methanol gasoline, and the thermal efficiency of the engine is improved, so it can reduce the exhaust emissions such as carbon monoxide and hydrocarbons (CH) in the exhaust gas of the vehicle during regular operation.

5) In the case of high oil prices and low methanol**, methanol fuel has a great advantage in the economy.

The disadvantages of methanol as a vehicle fuel are: (1) methanol has strong hygroscopicity and poor miscibility with gasoline, which will cause the stability of mixed fuels and water stratification problems; (2) The net calorific value of methanol is less than half of that of conventional gasoline, and the ignition of methanol fuel is poor, and the low-temperature starting performance of methanol fuel is poor, and it will be difficult for the engine to start at low temperature; (3) Methanol has serious corrosion of various metals, resulting in engine corrosion and wear problems, pure burning methanol needs to transform the engine, and there is a problem of engine versatility; (4) The cetane number of methanol fuel is low, and it is difficult to burn methanol fuel in compression-ignition engines, and there is a problem of engine carbon deposition; (5) Methanol has a dissolution effect on automobile rubber; (6) The energy density of methanol is low, and the volume of the fuel tank needs to be appropriately enlarged. Methanol makes the lubricating oil thinner, which will aggravate wear, and anti-corrosion inhibitors need to be added; (7) Methanol is toxic, and the formaldehyde emitted by methanol vehicles (unconventional emissions) at idle speed is 3 6 times that of ordinary gasoline vehicles; (8) When using methanol fuel (M85, M100), it is necessary to build a separate storage, transportation, filling and sales equipment system, and establish a safety protection system.

The above problems have caused long-term controversy about whether methanol can be used as an alternative fuel for automobiles, and have become a major obstacle to the promotion and application of methanol fuel. Focusing on solving the above problems, research and development have been carried out at home and abroad from methanol fuel, transportation and filling, methanol engines, methanol vehicles and other aspects.

There are more than 100 fuel pumps, which can be used for more than 1 year. The savings are about 40%. The state is promoting M85M100 in Shanxi, Shaanxi and Shanghai this year

Of course, the direct use of methanol fuel in the car will have an impact on the car, and the car is really designed for gasoline, and of course there is a problem with the use of methanol, so you have to use the kind designed for methanol.

It has an impact on the fuel system of the car, specifically the fuel pump placed in the methanol fuel will be corroded and paralyzed, we all know that the general car burns gasoline, so the current fuel pump is designed according to gasoline, called the carbon brush fuel pump, this carbon brush can play a good role in the gasoline, but it will be corroded in the methanol, the following netizens have made a good interpretation of methanol, the calorific value is low and the corrosion is strong, so change the methanol fuel without authorization, If nothing else, your car won't be able to run for half a month, and you have to change the fuel pump, thank you.

I also want to know, the most fundamental thing is whether the methanol added is ordinary industrial methanol? There is no problem with adding methanol and gasoline in one tank!

1. The latent heat of methanol vaporization is high, which is easy to cause poor anti-disturbance performance of methanol fuel at low temperature, and corresponding measures need to be taken in winter.

2. Methanol is mixed with gasoline to form azeotrope, under the proportion of methanol about 15%, the vapor pressure of methanol gasoline increases significantly, when the ambient temperature is high, methanol gasoline is easy to form gas resistance on the oil road, resulting in poor supply of vehicle oil.

3. Incomplete combustion of methanol is easy to form unconventional pollution emissions, of which formaldehyde emissions are higher than those of traditional gasoline vehicles, which can easily cause three-way catalyst poisoning of automobiles.

4. Methanol is corrosive, and rubber has an expansion effect, so methanol gasoline often needs to add anti-corrosion and anti-swelling additives.

5. Methanol is a good solvent, which will damage the oil film of the cylinder wall when it enters the cylinder, which is easy to cause.

What are the advantages and disadvantages of using methanol fuel for automobiles Advantages and disadvantages of methanol fuel vehicles: 1. The latent heat of methanol vaporization is high, which is easy to cause poor low-temperature starting performance of methanol fuel, and corresponding measures need to be taken in winter; 2. Methanol is mixed with gasoline to form azeotrope, under the proportion of methanol about 15%, the vapor pressure of methanol gasoline increases significantly, and when the ambient temperature is high, methanol gasoline is easy to form gas resistance on the oil road, resulting in poor supply of vehicle oil; 3. Incomplete combustion of methanol is easy to form unconventional pollution emissions, of which formaldehyde emissions are higher than those of traditional gasoline vehicles, which can easily cause three-way catalyst poisoning of automobiles. 4. Methanol is corrosive, and rubber has an expansion effect, so methanol gasoline often needs to add anti-corrosion and anti-swelling additives; 5. Methanol is a good solvent, which will damage the oil film of the cylinder wall when it enters the cylinder, and it is easy to cause abnormal wear of the piston ring friction pair of the cylinder wall. The incomplete combustion products of methanol contain acidic substances, which are easy to cause early acidification of engine lubricating oil.

1. Methanol is an extremely important organic chemical raw material, which is widely used in chemical, pharmaceutical, light industry, textile and transportation industries, and its derivatives have broad development prospects.

2. Methanol applications can be divided into two major application fields, namely MTBE and chemical applications, and MTBE used to be the main driver of the rapid growth of methanol demand. The main application area of methanol is the production of formaldehyde, formaldehyde can be used to produce adhesives, mainly used in the wood processing industry, followed by molding compounds, coatings, textiles and paper and other treatment agents, of which the adhesive used as wood processing accounts for about 80% of its total consumption.

3. Another main use of methanol is the production of acetic acid. Acetic acid consumes about 7% of global methanol demand and produces vinyl acetate, fibre acetate and acetate, among others, which are closely related to demand for coatings, adhesives and textiles. The main consumption areas of acetic acid in China are vinyl acetate, polyvinyl alcohol, acetate, acetic anhydride, terephthalic acid (PTA), chloroacetic acid, etc.

Acetic acid consumption accounts for about 7% of global methanol demand, and its demand is closely related to demand in coatings, adhesives and textiles.

4. Methanol is also used to produce methyl methacrylate, which accounts for about 2% of global methanol demand, mainly used to produce acrylic sheets, surface coatings and molding resins. Methanol is not only an important chemical raw material, but also an energy source and vehicle fuel with excellent performance. Methanol reacts with isobutylene to obtain MTBE, which is a high-octane unleaded gasoline additive that can also be used as a solvent.

Since the first 100kt A unit was completed and put into operation in 1973, it has become the world's second largest methanol consumer after formaldehyde. Methyl tert-amyl ether (TAME) is also an important oxygenated additive for gasoline.

5. The new liquid fuel prepared by methanol and dimethyl ether in a certain proportion is called alcohol ether fuel. Its combustion efficiency and thermal efficiency are higher than that of liquefied gas. In the process of seeking alternative fuels for gasoline, alcohol ether fuels have great application potential.

Methanol can also be used directly as a fuel for automobiles.

Methanol is an important organic chemical raw material, mainly used for the production of formaldehyde, the consumption accounts for half of the total output of formaldehyde, formaldehyde is an indispensable raw material for the production of various synthetic resins. Methanol can be used as a methylation reagent to produce methyl acrylate, dimethyl terephthalate, methylamine, methylaniline, methane chloride, etc.; Methyl fermentation carbonylation can produce acetic acid, acetic anhydride, methyl formate and other important organic synthesis intermediates, they are the raw materials for the manufacture of various dyes, drugs, pesticides, explosives, spices, spray paint, at present, the synthesis of ethylene glycol, acetaldehyde and ethanol with methanol has also received increasing attention.

Methanol is an important organic solvent with better solubility than ethanol and can be used to prepare paints. Some inorganic salts such as sodium iodide, calcium chloride, ammonium nitrate, copper sulfate, silver nitrate, ammonium chloride, and sodium chloride are more or less soluble in methanol. As a good extractant, methanol can be used in analytical chemistry for the separation of some substances, and also for the detection and determination of boron.

If methanol is added directly to the gasoline tank, it will cause problems such as emulsion stratification, oil circuit blockage, etc., which will cause corrosion to the car. Methanol car is not only to install a simple methanol car controller or converter on the original car, you must know that the methanol controller or converter currently sold on the market is to use the original car's fuel tank, oil circuit, injector (fuel injector, fuel rail, O-ring), fuel pump, liquid level sensor, filter, etc., which are for the original car cylinder corrosion, oil circuit swelling corrosion, liquid level sensor swelling corrosion, O-ring swelling corrosion, filter corrosion, fuel injector corrosion and blockage, The fuel pump of the original car is equipped with a carbon brush commutator, which is impossible to resist methanol corrosion, and these are impossible to solve; Because methanol is installed in the fuel tank of the original car, the fuel tank, oil circuit, injector (fuel injector, fuel rail, O-ring), fuel pump, liquid level sensor, filter, etc. are designed by the vehicle manufacturer according to the physical and chemical properties of gasoline.

At present, the manufacturers of the automobile gasoline-methanol dual-fuel electronic injection system that do not use the fuel tank, oil circuit, injector (fuel injector, fuel rail, O-ring), fuel pump, liquid level sensor, and filter of the original car are very few manufacturers who use methanol vehicles specially designed according to the physical and chemical properties of methanol. I used to use the methanol controller and converter in Shanxi, Shaanxi, Henan, Hebei, Beijing, Shandong and many other homes, they are using the fuel system of the original car, injection system to burn methanol, but they operate methanol controller, converter people are not professional, and the failure rate after the installation of methanol controller or converter is very high, the vehicle is often easy to lie down when driving, must use a rescue vehicle to be able to tow home (if driving at low speed in the city, the vehicle shutdown may only cause a rear-end accident), If it fails and stalls at high speeds, the vehicle braking system will fail, and eventually cause irreparable traffic accidents, because as long as the vehicle stalls while driving, whether you burn gasoline or methanol, the result is the same (vehicle brake failure). The automotive gasoline-methanol dual-fuel electronic injection system of China Alcohol Chemical Company does not use the fuel tank, oil circuit, injector (fuel injector, O-ring), fuel pump, liquid level sensor, and filter of the original car to burn methanol, and is specially designed according to the physical and chemical properties of methanol

Fuel tank, oil circuit, injector (fuel injector, O-ring), fuel pump, liquid level sensor, filter, does not affect the normal use of the original vehicle's gasoline system, when the methanol system fails, the original vehicle's gasoline system can ensure that the vehicle is automatically converted to the state of burning gasoline without turning off when driving, so as to prevent the occurrence of flameout phenomenon and ensure the driver's driving safety;